Yay bikes!
A Human on a Bicycle Is among the Most Efficient Forms of Travel in the Animal Kingdom | Scientific American https://share.google/m5MB5k11DuJNAw55W
He seems to imply that there's less stiction/friction in the chain (since fewer links are moving? I'unno). Seems like a very small source for some very big claimed wattage gains. Seems like he's making big claims while the actual-data from the lab is "pending." I have an oval on all my bikes...